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Aug. 25, 1925.

K C. BODMER ET AL JOINT FOR TOOLS AND THE LIKE 'Filed May 9, 1924 w @wwwa w @Mouw/13 i PATENTj-orFlCE.:1*

Patented Aug. 25, 1925.

'cuni'sTrAN'iaoniviifin1 ANDI STUART w. rAnsoNsl, oF NEW BRITAIN, CONNECTICUT, As-

' sIGN'on's-To THE sTANLEYwonKs or New BmTAINyCoNNECTICUT, A Con-ronay TICN or 'CO'NNECTTCUT JOINT ron' Toons AND` .THE LIKE.

y j vfappiiaaon ined Nay 9, v192,4.. serial No. 712,045.

To all when?, tntag/rcowlcern: p y

Be it known. that-we, CHnIsTLiN Bomann and STUART lV.PARsoNs, 1, citizens of the United States, -and residents of New Britain,

l county of-HartfordfStateof Connecticut,

have invented certain new-and. usefulgin- ,provements in Jointsfor Tools and the like, Vofwhich ther following is a specification.

This invention relateagenerally, to tools and thev like of the sort having'l a bodyportion witha slot or groove, and a relatively thin blade or tongue fitting within the slot of thebody portion and iininovably secured thereto. As aniijist-ance of an.` application l'off-the present invention, `reference may. be

Emin'als offa spotwelding fixture o rniachine vareadapted to .contact'during the welding Ioperation,.a nd the blade'b is provided with 'an aperture or hole 12 adapted to ,register had to a square, suchas is illustratedin the drawing, and `having aliandle or body port-ion with a relatively narrow,r deep slot at one end anda blade fitting within the slot yandV secured in'place 'as` hereinafter de scribed.-V j 'i y The aim of the present invention is to provide an improved union or connection ybetween the body portion and blade, the con.- nection being characterized by its simplicity, its strength and durability, by itsv neatness in appearance, and the ease and economy with which it maybe made.

Other objects will be in part obvious and in part pointed out more in detail herein-` after.

The invention accordingly consists in t-lie features of construction, combination of ele= ments and arrangement of parts which will be exemplified in the construction hereinafterset forth, and the scope of the application of which will be indicated in the appended claims.

In the accompanying drawing, wherein l have shown, for illustrative purposes, one embodiment which the presentinvention niay take, it being understood that this showing is by way of exeinplii'ication only and that the invention issusceptible of various modifications and changes,`

Figure 1 is aside elevation of a try square;

Fig. 2 is a perspective .view showing the Vblade and handle before they are assembled together; l

Fig. 3 is asectional view through the handle before the blade is secured thereto, this view being taken substantially on line 3-3 of Fig. 2; and

Fig. 4c is a sectional view taken 4online lit-'f1 of lland showing theiinion between tlie blade and handle.

Referring to the drawing in detail, designates. a body portion which, in thel present instance, is in the form yof a handleor beam,

fand bdesignatesa relatively thin tongue vwhiclris in the form of a blade. The haii- -dle cis provided, at one end, with arelatively deep, narrowslot 1() in which closely fits oneendof the'blade b, -as is.usual in structures of this sort.y i 1 Y In Vaccordance with the present invention,

the handle a, at its slotted end'fand oneach side, is provided with a raised portion, boss ,l

or button 11 with which the vweldingfterdie beyond these ribs. These ribs also serve the purpose of preventingthe molten metal from spreading to any great extent and marring the appearance of the tool.

After the part-s are constructed as described, the blade is inserted in the .slet 10 with the hole 12 yin alineinent with the centers of the bosses 11. 'llhe opposing terininals of a spot welding machine are then brought into engagement with the bosses and, as the current passes between the terminals, the bosses are fused and the fused metal will run into the hole 12 and thus form, so to speak, a rivet integral with the handle and extending through thev blade. During the welding operation, the handle and blade are fused together so that a` very secure joint is obtained and the parts are held tightly together against relative movent. vAs stated, the annular ribs take up the heat which would otherwise spread, and thus discoloration and marring of the handle beyond these ribs is effectively guarded against. Also, these ribs form pockets into which the metal of the bosses,

vas they aremelted down, runs, thus conbe seen that the proce: employed for connecting the parts together may be very easily and economically carried out, so that the cost of the device is materially reduced and a very secure, tight union is obtained.

As many changes could be made in the above construction and many apparently Widely different embodiments of this' invention could be made Without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawing shall be interpreted as illustrative and not in a. limiting sense.

It is also to be understood that the language used in t-he following' claims is intended to cover all of the generic and specific features of the invention herein described and all statements of the scope of the invention which, as a matter of language, might be said to fall therebetween.

lVe claim, as our invention:

l. A square having a handle portion pro-- vided at one end with a relatively deep, narrow slot, a boss on each side of the handle at the slotted end thereof and a rib about each boss; and a blade fitting in said slot and having a. hole in alinement with the bosses, said bosses being fused to form an integral rivet extending through said hole and united with said blade.

2. The herein described method which consists in forming a body portion with a slot and a tongue with a hole, positioning the apertured portion of the tongue in the slot of the body portion, and fusing the metal of the body portion adjacent the hole to form an integral rivet extending through the hole and to unite together the metal of the tongue and body portion adjacent the hole.

3. The herein described methodv which consists in forming a body portion. with a slot and a boss on each side, forming a tongue with a hole, positioning the apertured portion of the tongue .in said slot, and passing an electric current through the bosses to fuse the same and form an inte- '"7 rib about each boss; forming a tongue With a hole; positioning the tongue in the slot with the hole in alinement with the bosses, and electrically Welding the parts together by passing a current through the bosses,

thereby fusing the same with the tongue and :7'

forming a rivet integral With the body portion and extending thro-ugh the hole in the tongue.

CHRISTIAN BODMER. STUART l/V. PARSONS. 

